December weather forecastLas Morenas, Guatemala

Weather in December

December, the first month of the winter in Las Morenas, is still a tropical month, with temperature in the range of an average low of 22.9°C (73.2°F) and an average high of 32.2°C (90°F).

Temperature

The arrival of December brings an average high-temperature of a still tropical 32.2°C (90°F), closely following the temperature pattern of November. Las Morenas encounters a steady low-temperature average of 22.9°C (73.2°F) throughout the month of December.

Heat index

For most parts of December, the heat index is calculated to be a fiery hot 39°C (102.2°F). Exercise increased caution, heat cramps and heat exhaustion are potential hazards. Continuous activity could lead to heatstroke.
It is important to note that the heat index values are for shaded areas and light wind scenarios. A direct sunlight exposure may boost the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'apparent temperature', is a single figure representing how weather conditions feel when combining temperature and humidity. Elements such as metabolic variations, being pregnant, and physical activity can impact one's weather perception. One's exposure to direct sunlight has the potential to intensify the heat sensation, increasing the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly important for children. Young ones generally face higher dangers than adults since they sweat less. Along with their large skin surface area compared totheir small bodies and increased heat production from their activities, the risks are heightened.
The human body cools itself through perspiration, as excessive warmth is removed from the body through sweat evaporation. A surge in relative humidity can disrupt the body's normal cooling function by slowing evaporation, hence reducing the rate at which the body cools and intensifying the perception of heat. As the body gains more heat than it can dissipate, there's a risk of increasing temperatures and resultant overheating.

Humidity

In December, the average relative humidity is 63%.

Rainfall

In Las Morenas, in December, during 4.2 rainfall days, 4mm (0.16") of precipitation is typically accumulated. In Las Morenas, during the entire year, the rain falls for 190.7 days and collects up to 718mm (28.27") of precipitation.

Daylight

With an average of 11h and 18min of daylight, December has the shortest days of the year.
On the first day of the month, sunrise is at 06:11 and sunset at 17:32. On the last day of December, in Las Morenas, sunrise is at 06:26 and sunset at 17:45 CST.

Sunshine

With an average of 7.7h of sunshine, December has the least sunshine of the year in Las Morenas.

UV index

The months with the highest UV index in Las Morenas are January through December, with an average maximum UV index of 7. January through December, with an average maximum UV index of 7, are months with the lowest UV index. A UV Index estimate of 6 to 7 represents a high health risk from unprotected exposure to Sun's UV rays for the ordinary person.
Note: An average maximum UV index of 7 in December leads to these recommendations:
Persist with safeguards and heed sun safety doctrines. Keeping sunburn at bay is of prime importance. Between 10 a.m. and 4 p.m., the Sun emits the most powerful UV radiation. Limit direct exposure to the Sun during these hours. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes.